DigiDesign RM1 Manual Download

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Appendix A: Specifications

Power Amplifier Specifications

Conditions: Zload = 8¾, Measurement Bandwidth = 20 kHz AES17

Item

Symbol

Spec

Unit

Conditions and Notes

Output Power

RM1: LF 80W, HF 40W
RM2: LF 100W, HF 50W

1% THD. 1 or 2 channels is
transformer dependent

Dist Noise

THD+N

0.05

Maximum, up to PR/2

0.005

Typical, at 5W. Not fre-
quency dependent.

Signal/Noise

SNR

125

Minimum, reference
100W/8¾.

105

Minimum, reference 1W

Frequency
Response

DC-50k

+0, –3 dB, all loads

Output Impedance

0.02

Typical, 1 kHz

0.1

Typical, 20 kHz

Maximum Output
Current

IOMAX

Min.

Efficiency

>92

Full power

Idle losses

Summary of Contents for RM1

Page 1: ...Digidesign RM1 and RM2 Professional Reference Monitors ...

Page 2: ...subject to change without notice This guide may not be duplicated in whole or in part without the express written consent of Digidesign Avid Digidesign Pro Tools RM1 and RM2 are either trademarks of Avid Technology Inc in the US and or other countries All other trademarks contained herein are the property or their respective owners THIRD PRINTING 01 08 ...

Page 3: ...esigned to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment ...

Page 4: ...and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specifi...

Page 5: ...ntrols 5 Front Panel LED 8 Chapter 3 Setup and Operation 9 Getting Started 9 Setting Up the Speakers 9 Configuring and Connecting AC Power 10 Connecting Audio 11 Power Up and Power Down 13 Configuring Monitor Settings 13 Tips for Best Performance 15 Troubleshooting 15 Appendix A Specifications 17 Audio Specifications for the Digidesign RM1 and RM2 17 Power Amplifier Specifications 19 Reference Dia...

Page 6: ...Digidesign RM1 and RM2 Guide vi ...

Page 7: ...amped near field monitors Digital and analog inputs Proprietary drivers digital electronics power amp and cabinet engineering provide unri valled tonal accuracy clarity and dynamic range with exceptionally low distortion Onboard DSP Manages the digital crossover for clearer imaging Provides gain trim sensitivity low and high frequency adjustment and L R chan nel assignment Provides Bass Port Emula...

Page 8: ...d fea tures available Product Registration Register your purchase on line See the Digidesign Registration Informa tion Card included with your system for instruc tions Support and Downloads Contact Digidesign Technical Support or Customer Service down load software updates and the latest online manuals browse the Compatibility documents for system requirements search the online An swerbase or join...

Page 9: ...n turn appears cleaner and clearer as it is not masked by harmonic distor tion residing in the very low frequencies This technology produces a higher SPL and lower bass extension than a ported or sealed cabinet of a similar size using identical drivers Drivers The RM1 features a 5 and 1 2 inch LF driver while the RM2 provides a 6 7 inch LF driver These LF drive units are optimized for an ATL desig...

Page 10: ...Digidesign RM1 and RM2 Guide 4 ...

Page 11: ...nectors and controls on the RM1 and RM2 reference monitors Connectors and Controls Figure 1 Back panel of the RM1 same as RM2 Voltage selector Power Channel Assign Gain Trim LF HF Controls and Anchors for optional mount AC Power switch Fuse Inputs Settings Bass Port Emulation Analog In AES3 Digital In IN THRU ...

Page 12: ...1 6A fuse To change fuses 1 Use a small screw driver to remove the fuse holder 2 Remove the factory installed fuse 3 Install the new fuse in the fuse holder so that it goes in first Power Switch and AC Connector The AC port accepts an AC power cord included with your monitor Once connected use the Power switch to turn the unit on or off To com pletely isolate the mains remove the power cord Inputs...

Page 13: ...l utiliz ing built in LF shelf type EQ The range of ad justment is 4 dB to 3 dB in 0 5 dB steps See Setting LF on page 14 Channel Assign Selects which of the channels of the AES digital input left or right is repro duced See Connecting Digital Input on page 11 Gain Trim Sets the input sensitivity See Setting Gain Trim on page 13 Bass Port Emulation The RM speakers are equipped with the ability to ...

Page 14: ... indicator appears on the front of both RM1 and RM2 and indicates the following states Front Panel LED States LED Status Indication UNLIT No power or momentary power up mute mode BLUE Power on RED Amplifier clipping Reduce input level when RED is displayed ...

Page 15: ...s are durable reusable and can be em ployed to safely transport your loudspeakers should they need to be relocated Setting Up the Speakers Reference monitors should always be placed to provide balanced accurate sound in your pre ferred mixing position The exact location de pends on the size and acoustics of the environ ment where the speakers are being used In all installation observe the followin...

Page 16: ... the re sponse of your RM speakers for your listening environment Configuring and Connecting AC Power Be sure to follow the instructions in this section for the proper configuration of fuses and volt age Setting the Voltage Make sure the Voltage Selector setting on both monitors matches your local main voltage sup ply 100 115V or 230V Installing the Correct Fuse Make sure you have installed the fu...

Page 17: ...sign 192 I O audio interface 3 Repeat steps 1 and 2 for other RM monitors Connecting Digital Input The Digidesign RMS monitors accept AES input from the AES 3 Digital Input XLR connector and the IN port RJ45 RMS monitors clock to the digital source About Digital Thru AES 3 and RJ45 digital protocols carry two chan nels of audio left and right When using a dig ital source that source device connect...

Page 18: ... multiple inputs con nected simultaneously digital input takes prior ity over analog Whenever a valid digital input is detected the analog input is muted Addi tional rules apply when using both digital input formats or all three analog and both XLR and RJ45 digital Digital Input Mode Whenever a valid digital source signal is de tected at the AES IN or RJ45 IN ports digital in put is selected Analo...

Page 19: ...faster and with more sensitivity to every nuance of the audio spectrum The depth and dynamics of bass will improve along with the clarity of image place ment The duration of Running Breaking in can take up to 14 hours of reasonable use Configuring Monitor Settings Setting Gain Trim Gain Trim is a 16 position continuous rotary en coder that lets you match the input sensitivity of the RM1 or RM2 mon...

Page 20: ...If the monitor is placed near a wall ceiling or floor it may increase the perceived quantity of low frequency energy If so it may be necessary to reduce the LF level coming from each monitor If in a large or free standing environment the LF level can be in creased The amount of adjustment required varies depending on room acoustics and per sonal preference The range of adjustment is 4 dB to 3 dB i...

Page 21: ...plugging signal connections or switching source equipment Should any problems arise contact your Digidesign dealer and they will assist you in re solving the issue Troubleshooting Before troubleshooting ensure you heed the warnings at the front of this guide The LED located on the front of the unit indi cates the following states of operation If the LED is blue and there is no sound do the followi...

Page 22: ... very little power is converted to heat But if the unit is place in an unventilated or hot environment the thermal shutdown safety feature may activate If this occurs relo cate the unit If the thermal shutdown activates a second time after satisfactorily resetting contact Digidesign customer service Contact information is in cluded on the back cover of this guide ...

Page 23: ...ro fluid cooling LF 170mm doped cone with cast alloy chassis HF 27mm fabric soft dome with ferro fluid cooling Crossover Frequency 3 kHz 3 kHz HF Adjustment 4 to 3 dB in 0 5 dB steps corner frequency 1 kHz LF Adjustment 4 to 3 dB in 0 5 dB steps cor ner frequency 750 Hz 4 to 3 dB in 0 5 dB steps cor ner frequency 500 Hz Input Connectors Analog XLR Female PIN 1 GND PIN 2 PIN 3 Digital XLR Female PI...

Page 24: ...gidesign RM1 and RM2 Specifications RM1 RM2 Analog to Digital Specification for RM1 and RM2 Item Symbol Spec Unit Notes Max input level Vin 20 9 dBu Signal to noise ratio SNR 111 109 dB dB A weighted 20 kHz unweighted Total Harmonic Distortion Noise 95 dB 20 Hz 20 kHz 1 dBFS MBW 20 kHz Frequency Response BW DC 40 kHz Digital to Analog Output to Power Amplifier for RM1 and RM2 Item Symbol Spec Unit...

Page 25: ...0W W 1 THD 1 or 2 channels is transformer dependent Distortion Noise THD N 0 05 Maximum up to PR 2 0 005 Typical at 5W Not fre quency dependent Signal Noise SNR 125 dB Minimum reference 100W 8 105 Minimum reference 1W Frequency Response BW DC 50k Hz 0 3 dB all loads Output Impedance ZO 0 02 W Typical 1 kHz 0 1 Typical 20 kHz Maximum Output Current IOMAX 9 A Min Efficiency h 92 Full power Idle loss...

Page 26: ...Digidesign RM1 and RM2 Guide 20 Reference Diagrams RM1 Diagrams RM1 Bass Port Emulation Figure 2 RM1 Bass Port Emulation levels ...

Page 27: ...Appendix A Specifications 21 RM1 LF Level RM1 HF Level Figure 3 RM1 LF settings and levels Figure 4 RM1 HF settings and levels ...

Page 28: ...Digidesign RM1 and RM2 Guide 22 RM2 Diagrams RM2 Bass Port Emulation Figure 5 RM2 Bass Port Emulation levels ...

Page 29: ...Appendix A Specifications 23 RM2 LF Level RM2 HF Level Figure 6 RM2 LF settings and levels Figure 7 RM2 HF settings and levels ...

Page 30: ...Digidesign RM1 and RM2 Guide 24 ...

Page 31: ......

Page 32: ...City CA 94014 3886 USA Tel 650 731 6300 Fax 650 731 6399 TECHNICAL SUPPORT USA Tel 650 731 6100 Fax 650 731 6375 PRODUCT INFORMATION USA Tel 800 333 2137 INTERNATIONAL OFFICES Visit the Digidesign website for contact information www digidesign com ...

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